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61. 发明专利

JPS6054153B2 失效
公开(公告)号：JPS6054153B2
公开(公告)日：1985-11-28
申请号：JP11496581
申请日：1981-07-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO
IPC分类号： B23K26/06 , B23K26/073 , H01S3/101 , H01S3/106

62. 发明专利

JPS5847587A LASER WORKING DEVICE 失效
公开(公告)号：JPS5847587A
公开(公告)日：1983-03-19
申请号：JP14715281
申请日：1981-09-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO
IPC分类号： B23K26/06 , B23K26/073 , H01S3/106 , B23K26/08
摘要： PURPOSE:To improve working performance, and to obtain a smoothly cut cross section, by providing a polarizer between optical resonators of a laser working device, and controlling a direction of the polarizer so that a polarizing direction of a laser beam may conform with its working advancing direction. CONSTITUTION:A laser beam 20 is oscillated through a polarizer 19, and is reflected by a reflector 11, and is converged on the surface of a substance to be worked 17 by a lens 13. When the substance to be worked 17, and a focus of the laser beam 20 move relatively and cut-working is exectued, the polarizer 19 is turned by a polarization control motor so that this moving direction may be parallel with the polarizing direction. When the polarizer 19 rotates, the optical axis of the laser beam 20 moves circularly on the specular surface of a total reflection mirror 18. This total reflection mirror 18 is a plane mirror, therefore, the optical axis of the laser beam 20 passing through glow discharge 5 is not moved, and oscillation of the laser beam between the total reflection mirror 18 and a partial reflection mirror 7 is continued.

63. 发明专利

JPS5816786A LASER WORKING MACHINE 失效
公开(公告)号：JPS5816786A
公开(公告)日：1983-01-31
申请号：JP11496581
申请日：1981-07-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO
IPC分类号： B23K26/06 , B23K26/073 , H01S3/101 , H01S3/106
摘要： PURPOSE:To eliminate the directivity in working on account of polarization and to improve working capacity by matching the direction of the polarization of a laser beam with the direction of working. CONSTITUTION:When a linearly polarized laser beam 12 radiated from an oscillator 11 passes through a 1/4 wavelength plate 14, the beam is changed to a circularly polarized laser beam 12a. When said beam passes through a 1/4 wavelength plate 16 further, the beam is changed to a linearly polarized laser beam 12b. If the plate 16 is rotated around the axis parallel with the beam 12b at this time, the direction of polarization of the beam 12c rotates as well, and the beam focuses on the work 10. When a working table 9a is moved to the shapes to be worked by the control signal of a numerical controller, the work 10 is cut by the laser beam 12c. A motor 17 is driven by the control signal during the cutting and the plate 16 rotates together with a holder 15, by which the polarization direction of the beam 12b is controlled and the polarization direction of the beam 12c is controlled so as to coincide with the advancing direction of the work at all times.

64. 发明专利

JPS57196590A LASER PROCESSING DEVICE 失效
公开(公告)号：JPS57196590A
公开(公告)日：1982-12-02
申请号：JP8144581
申请日：1981-05-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO
IPC分类号： B23K26/064 , H01S3/10 , H01S3/106
摘要： PURPOSE:To contrive improvement in processing efficiency of the titled device by a method wherein a polarizer is provided between optical resonators, and the direction of the polariser is controlled in such a manner that the polarizing direction of a laser beam will be coincided with the progressing direction of the processing. CONSTITUTION:The laser beam 15 which was polarized by the polarizer 20 is reflected by a reflecting mirror 11, and condensed on the surface of the material to be processed 17 by a lens 13. Then, the material to be processed 17 is shifted on a plane surface together with a shifting stand 16a by an X-shaft motor 16b and a Y-shaft motor 16c, and a cutting work is performed on the material to be processed 17 using the heat energy of the laser beam 15. At this time, a polarizer 20 is rotated together with a polarizer holder 19 by a polarization control motor in such a manner that the relative shifting direction of the focus of the laser beam 15 on the surface of the material to be processed will be coincided with the direction of polarization, the direction of electrostatic vector in other words.

65. 发明专利

JPS54113298A LASER OSCILLATOR 失效
公开(公告)号：JPS54113298A
公开(公告)日：1979-09-04
申请号：JP948678
申请日：1978-01-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO , TAKAGI SHIGERU , ANDOU TAKASHI
IPC分类号： H01S3/134 , H01S3/0971
摘要： PURPOSE:To reduce the voltage drop dependent upon resistance to reduce power loss by using a resistor having a characteristic, where the resistance value is increased by the temperature rise dependent upon a current, as a power control resistance for the purpose of stabilizing the glow discharge of plural electrodes. CONSTITUTION:Oscillator main body 1 is so produced as to hold airtightness, and anode 2 and cathode 10 are supported by insulating plate 3 and insulating plate 8 respectively and are fixed to the inside. The needle-shaped tip of cathode 10 faces anode 2, and distances between anode 2 and tips of cathodes 10 are equal to one another. Full-reflection mirror 7 and semi-reflection mirror 5 are determined in position so that the line passing through cebters of them may pass a highest- light amplification factor part of the discharge space generated between anode 2 and cathode 10, and mirrors 7 and 5 are fitted to main body 1 by mirror holders 4 and 6 so that thet may face each other. Resistances 9 are fitted to cathodes 10 respectively, and the temperature rise accompanied with the current increment dependent upon a thermistor having a positive characteristic makes the resistance value of them large, so that the power source voltage can be made lower in comparison with a conventional laser oscillator where the resistance value is constant.

66. 发明专利

JPS54102894A COOLER FOR LASER RESONATOR 失效
公开(公告)号：JPS54102894A
公开(公告)日：1979-08-13
申请号：JP904578
申请日：1978-01-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO
IPC分类号： H01S3/04
摘要： PURPOSE:To prevent damage due to thermal stress, by cooling the semi-transparent mirror efficiently, through the adhesion of the thermal conduction material cooled for the surrounding and made of the material which can transmit laser light to the mirror plane of semi-transparent mirror. CONSTITUTION:At the surface performing non-reflection coating at the laser light pick up side of the semi-transparent mirror 5, the end of the cooling cylinder 6 being the thremal conduction material made of GaAs which transmits laser light is bonded, and they are fixed with the bracket 4 in the housing 1 together. Further, cooling water enters from the cooling water pouring inlet 2 of the housing 1, flows along the circle circumference of the cooling cylinder 6 and the semi-transparent mirror 5, and it effectively removes the heat cuased by the reflection of the standing wave of laser light from the optical resonator at direction B and the transmission of laser light discharged, and discharges it from the cooling water discharged outlet 3.

67. 发明专利

JPS5130167A 失效
公开(公告)号：JPS5130167A
公开(公告)日：1976-03-15
申请号：JP10281674
申请日：1974-09-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO , OIE SHOSUKE
IPC分类号： A47L1/02 , A47L11/38

68. 发明专利

JP2002276905A LIQUID FUEL COMBUSTION DEVICE 失效
公开(公告)号：JP2002276905A
公开(公告)日：2002-09-25
申请号：JP2001079752
申请日：2001-03-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： MARUYAMA MASAHIKO , MURATA TETSUO , TANZAWA SATOSHI
IPC分类号： F23D11/10 , F23D11/44
摘要： PROBLEM TO BE SOLVED: To provide a liquid fuel combustion device capable of keeping the temperature of a vaporizing part at an optimum state throughout a wide range extending from strong burning to weak burning. SOLUTION: The liquid fuel combustion device comprises a vaporizer 1 to feed liquid fuel and combustion air to an internal part; a burner head 5 situated at the upper part of the vaporizer 1 and provided at the peripheral wall part with a plurality of burner ports 6; and a flame stabilizing ring 10 situated at the periphery of the burner head 5. A heat insulation material 8 is disposed between the burner head 5 and the vaporizer 1.

69. 发明专利

JP2001336708A COMBUSTION EQUIPMENT 失效
公开(公告)号：JP2001336708A
公开(公告)日：2001-12-07
申请号：JP2000161641
申请日：2000-05-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： HONDA TETSUYA , SATO MINORU , KOSEKI HIDEKI , NAKAMUNE HIROAKI , MARUYAMA MASAHIKO , MITSUTA KENRO
IPC分类号： F23D11/00 , F23D11/40 , F23D11/44
摘要： PROBLEM TO BE SOLVED: To provide combustion equipment which can suppress the generation of nitrogen oxides and can prevent carbon monoxide from being discharged from the equipment without increasing the size of the equipment. SOLUTION: In this combustion equipment provided with a cylindrical burner head which forms primary flames by burning a mixed gas of fuel and air at burner ports made through its side face, a secondary combustion air supplying passage which guides and supplies secondary combustion air to the primary flames formed by means of the burner head, and a cylindrical flame holding ring which is formed to surround the burner head at a prescribed interval from the burner ports of the head, a large-diameter section is formed at part of the flame-holding ring on the side corresponding to the secondary combustion air supplying passage.

70. 发明专利

JPH0195885A METHOD AND DEVICE FOR ENGRAVING BY LASER BEAM 失效
公开(公告)号：JPH0195885A
公开(公告)日：1989-04-13
申请号：JP25271287
申请日：1987-10-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： KANEHARA YOSHIHIDE , MARUYAMA MASAHIKO
IPC分类号： B23K26/00
摘要： PURPOSE:To perform engraving with shallow depth and uniform depth even on material such as wood and leather by using a pulsative laser beam capable of setting duty and frequency at the time of engraving material to be machined following an engraving original edition with the laser beam as an energy source. CONSTITUTION:The engraving original plate 9 and the material 8 to be machined are mounted on a table 12 movable on an XY coordinate plane by driving means 10 and 11 and a pattern on the engraving original edition 9 is detected by an optical sensor 2 to output a detected signal C1. On the other hand, a pulse generator 15 sets pertinently a duty setter 13 and a frequency setter 14 to output a high-frequency pulse signal C2 which is inputted to an AND circuit 16 to output an AND signal C3 which is inputted to a switch means 3 and ON-OFF control is carried out by the pulse signal. Thereby, the average energy of the laser beam L from a laser beam oscillator 4 is reduced and the shallow and low energy laser beam L with respect to the rated output of the laser beam oscillator 4 is oscillated to the thin material 8 to be machined such as leather and engraving of the same pattern as the carving original plate 9 is performed on the material 8 to be machined by a machining head 7.

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